Cave Paintings,carvings,statues,and Tools of the Age Between 30,000 and 40,000

Cave paintings,carvings,statues,and tools of the age between 30,000 and 40,000 years ago provide evidence that in the ancient age:

A) sexual activities among humans were devoid of any emotional bonding.
B) humans indulged in sexual activities purely for the purpose of procreation.
C) humans indulged in sexual activities only during the estrus period of the female.
D) sexual pleasure was a prominent part of human sexual nature.
E) culture had no influence over human sexual behavior.